Remove useless UnsupportedOperationExceptions

[bgpcep.git] / bgp / concepts / src / main / java / org / opendaylight / bgp / concepts / NextHopUtil.java

diff --git a/bgp/concepts/src/main/java/org/opendaylight/bgp/concepts/NextHopUtil.java b/bgp/concepts/src/main/java/org/opendaylight/bgp/concepts/NextHopUtil.java
index a2a6c22cba7bbcc4a8be1e248bd4b24295395122..f4e761c0f0cbd60442b75f72fb786465894c850b 100644 (file)
--- a/bgp/concepts/src/main/java/org/opendaylight/bgp/concepts/NextHopUtil.java
+++ b/bgp/concepts/src/main/java/org/opendaylight/bgp/concepts/NextHopUtil.java
@@ -11,23 +11,22 @@ import com.google.common.base.Preconditions;
 import io.netty.buffer.ByteBuf;
 import org.opendaylight.protocol.util.Ipv4Util;
 import org.opendaylight.protocol.util.Ipv6Util;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.CNextHop;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.EmptyNextHopCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHopBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHop;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHopBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.CNextHop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.EmptyNextHopCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv4NextHopCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv4NextHopCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv6NextHopCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv6NextHopCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHopBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHopBuilder;
 
 /**
  * Utility class for of CNextHop serialization and parsing.
  */
 public final class NextHopUtil {
-
     private NextHopUtil() {
-        throw new UnsupportedOperationException();
+        // Hidden on purpose
     }
 
     /**
@@ -62,18 +61,48 @@ public final class NextHopUtil {
     public static CNextHop parseNextHop(final ByteBuf buffer) {
         switch (buffer.writerIndex()) {
             case Ipv4Util.IP4_LENGTH:
-                return new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder()
-                        .setGlobal(Ipv4Util.addressForByteBuf(buffer)).build()).build();
+                return parseNextHopIpv4(buffer);
             case Ipv6Util.IPV6_LENGTH:
-                return new Ipv6NextHopCaseBuilder().setIpv6NextHop(new Ipv6NextHopBuilder()
-                        .setGlobal(Ipv6Util.addressForByteBuf(buffer)).build()).build();
+                return parseNextHopIpv6(buffer);
             case Ipv6Util.IPV6_LENGTH * 2:
-                return new Ipv6NextHopCaseBuilder().setIpv6NextHop(
-                        new Ipv6NextHopBuilder().setGlobal(Ipv6Util.addressForByteBuf(buffer))
-                                .setLinkLocal(Ipv6Util.addressForByteBuf(buffer)).build()).build();
+                return parseNextHopFullIpv6(buffer);
             default:
                 throw new IllegalArgumentException("Cannot parse NEXT_HOP attribute. Wrong bytes length: "
                         + buffer.writerIndex());
         }
     }
+
+    /**
+     * Parses CNextHop IPv4 address from given ByteBuf, which has already been checked for size.
+     *
+     * @param buffer contains byte array representation of CNextHop
+     * @return CNexthop object
+     */
+    public static CNextHop parseNextHopIpv4(final ByteBuf buffer) {
+        return new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder()
+            .setGlobal(Ipv4Util.addressForByteBuf(buffer)).build()).build();
+    }
+
+    /**
+     * Parses CNextHop IPv6 global address from given ByteBuf, which has already been checked for size.
+     *
+     * @param buffer contains byte array representation of CNextHop
+     * @return CNexthop object
+     */
+    public static CNextHop parseNextHopIpv6(final ByteBuf buffer) {
+        return new Ipv6NextHopCaseBuilder().setIpv6NextHop(new Ipv6NextHopBuilder()
+            .setGlobal(Ipv6Util.addressForByteBuf(buffer)).build()).build();
+    }
+
+    /**
+     * Parses CNextHop IPv6 global+local address from given ByteBuf, which has already been checked for size.
+     *
+     * @param buffer contains byte array representation of CNextHop
+     * @return CNexthop object
+     */
+    public static CNextHop parseNextHopFullIpv6(final ByteBuf buffer) {
+        return new Ipv6NextHopCaseBuilder().setIpv6NextHop(new Ipv6NextHopBuilder()
+            .setGlobal(Ipv6Util.addressForByteBuf(buffer))
+            .setLinkLocal(Ipv6Util.addressForByteBuf(buffer)).build()).build();
+    }
 }